Luggage lock



FIG. 1 is a top, front, and left side perspective view of a luggage lock showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof, the right side being a mirror image of that shown; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a luggage lock, as shown and described. 